I've read through several entries regarding this subject as my car is exhibiting issues in this area.
Specifically, when the car is idling (900RPM+), the headlight brightness is relatively dim.
Alternator voltage output in this RPM range is in the high 12s --> low 13s
If I have the Mrs. hold the throttle at a solid 1100-1200RPM, the Alternator output voltage and headlights stay constant. In fact, measured voltage at the headlight socket is ~14 volts.
The voltage stays constant up through 3000+ RPM.
I've made so many changes to this ride, I can't recall what I have now in the way of the Crank pulley...whether it be a UD or stock pulley.
Would someone be so kind as to tell me what the OUTSIDE diameter of a stock 5.0 pulley should be (inches) ???
If I determine I have a UD pulley, I'll try a stock pulley to see if this provides a remedy to my problem.
FYI: I'm using a PA Performance 240amp Alternator.
Specifically, when the car is idling (900RPM+), the headlight brightness is relatively dim.
Alternator voltage output in this RPM range is in the high 12s --> low 13s
If I have the Mrs. hold the throttle at a solid 1100-1200RPM, the Alternator output voltage and headlights stay constant. In fact, measured voltage at the headlight socket is ~14 volts.
The voltage stays constant up through 3000+ RPM.
I've made so many changes to this ride, I can't recall what I have now in the way of the Crank pulley...whether it be a UD or stock pulley.
Would someone be so kind as to tell me what the OUTSIDE diameter of a stock 5.0 pulley should be (inches) ???
If I determine I have a UD pulley, I'll try a stock pulley to see if this provides a remedy to my problem.
FYI: I'm using a PA Performance 240amp Alternator.